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thread/windows: Statically link synchronization APIs on WINRT

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GetModuleHandleW is not available on those platforms
---
 .../WinPhone81_VS2013/SDL-WinPhone81.vcxproj         |  8 ++++----
 VisualC-WinRT/WinRT81_VS2013/SDL-WinRT81.vcxproj     | 12 ++++++------
 src/thread/windows/SDL_sysmutex.c                    | 12 ++++++++++++
 src/thread/windows/SDL_syssem.c                      | 11 +++++++++++
 4 files changed, 33 insertions(+), 10 deletions(-)
This commit is contained in:
Joel Linn
2020-12-25 04:00:20 +03:00
parent ff913a22f4
commit d6afc1c608
4 changed files with 33 additions and 10 deletions
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12
src/thread/windows/SDL_sysmutex.c
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@@ -66,12 +66,19 @@ typedef struct _SRWLOCK {
} SRWLOCK, *PSRWLOCK;
#endif
#if __WINRT__
/* Functions are guaranteed to be available */
#define pReleaseSRWLockExclusive ReleaseSRWLockExclusive
#define pAcquireSRWLockExclusive AcquireSRWLockExclusive
#define pTryAcquireSRWLockExclusive TryAcquireSRWLockExclusive
#else
typedef VOID(WINAPI *pfnReleaseSRWLockExclusive)(PSRWLOCK);
typedef VOID(WINAPI *pfnAcquireSRWLockExclusive)(PSRWLOCK);
typedef BOOLEAN(WINAPI *pfnTryAcquireSRWLockExclusive)(PSRWLOCK);
static pfnReleaseSRWLockExclusive pReleaseSRWLockExclusive = NULL;
static pfnAcquireSRWLockExclusive pAcquireSRWLockExclusive = NULL;
static pfnTryAcquireSRWLockExclusive pTryAcquireSRWLockExclusive = NULL;
#endif
typedef struct SDL_mutex_srw
{
@@ -291,6 +298,10 @@ SDL_CreateMutex(void)
const SDL_mutex_impl_t * impl = &SDL_mutex_impl_cs;
if (!SDL_GetHintBoolean(SDL_HINT_WINDOWS_FORCE_MUTEX_CRITICAL_SECTIONS, SDL_FALSE)) {
#if __WINRT__
/* Link statically on this platform */
impl = &SDL_mutex_impl_srw;
#else
/* Try faster implementation for Windows 7 and newer */
HMODULE kernel32 = GetModuleHandleW(L"kernel32.dll");
if (kernel32) {
@@ -303,6 +314,7 @@ SDL_CreateMutex(void)
impl = &SDL_mutex_impl_srw;
}
}
#endif
}
/* Copy instead of using pointer to save one level of indirection */